Specification: Name: Stone cartridges Material: Molded of high-purity graphite Size: Carton: 57x42x11.5mm Inner Box 1: 7.9 * 20.6 * 4.1mm (molten silver 0.25oz) Inner box 2: 10.5 * 29.5 * 4.1mm (molten silver 0.5oz) Inner box 3: 13.0 * 35.8 * 4.1mm (molten silver 1oz) (Size of the error + -0.1mm) Features: Thermal stability, corrosion resistance, impact resistance Acid and alkali resistance, good thermal conductivity Clean and environmentally friendly non-stick material, long life Index: Body density 1.80 g / cm3, the resistor 9 unm Bending 45Mpa, 65Mpa compression Ash content 0.1%, particle 43um Uses: 1: melting gold and silver or other precious metals 2: test analysis equipment, or ingot mold, etc. Package include: 1x Stone cartridges

Fits for the casting of most metal, such as gold ,silver and copper and other alloy tool steel. Longer service life, Graphite crucible let the products are more durable than ordinary material products,able to withstand more than 2000 ? high temperature. 3 different size molds in one: Inner Box 1: 7.9 * 20.6 * 4.1mm (molten silver 0.25oz) Inner box 2: 10.5 * 29.5 * 4.1mm (molten silver 0.5oz) Inner box 3: 13.0 * 35.8 * 4.1mm (molten silver 1oz) (Size of the error + -0.1mm). Made from high density fine grain graphite, smooth cavity finish,well thermal stability,well corrosion resistance,good heat transfer performance. Size:external dimensions: 57x42x11.5mm.

Number of Pieces: 1. Shape: Body. Brand: LTKJ. Color: Gold,Silver. Date First Available: October 28, 2019. Best Sellers Rank: #217,323 in Arts, Crafts & Sewing. Customer Reviews: 3.7 out of 5 stars 20 ratings 3.7 out of 5 stars. Item model number: Graphite Ingot Mold. : B07RCWHLD2. Item Weight: 1.76 ounces. Package Dimensions: 5.91 x 4.33 x 0.71 inches.